As \(j\)  tends to zero, these quantities reduce to charged squashed Kaluza-klein black hole [1]} and with \(\rho _q=0\) 
the squashed Kaluza-klein black hole recovers [2]}.
One can see that the deflection angle increases with extra
dimension and decreases with \(\rho _q\) . By comparing these parameters with
those in four-dimensional Schwarzschild and Reissner-Nordström
black holes , we could extract information about the size of
extra dimension as well as the charge of the black hole by using strong field
gravitational lensing.
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